Finding the Fourth Proportional to 1,089.12, 1,622.67 and 1,034.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,089.12 : 1,622.67 = 1,034.04 : x
2. Step 2: Convert to fraction form
   1,089.12/1,622.67 = 1,034.04/x
3. Step 3: Cross multiply
   1,089.12x = 1,622.67 × 1,034.04
4. Step 4: Simplify right side
   1,089.12x = 1,677,905.69
5. Step 5: Solve for x
   x = 1,677,905.69/1,089.12
6. Step 6: Final answer
   x = 1,540.61